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Banker’ Algorithm

Banker’s Algorithm is a deadlock avoidance algorithm developed by Edsger Dijkstra designed for a system with multiple resource types and prevents deadlock by only allowing resource allocation requests that will leave the system in a safe state.

Key Concepts in Banker’s Algorithm

  • Safe State: The system is in a safe state if there exists a sequence of processes such that each process can finish its execution with the currently available resources.
  • Unsafe State: An unsafe state could potentially lead to a deadlock. However, an unsafe state does not necessarily mean the system is deadlocked, just that it’s at risk of deadlock.

Advantages:

  • Allows efficient allocation of resources while avoiding deadlock.
  • Only denies requests when it’s unsafe to proceed.

Disadvantages:

  • Requires knowledge of each process’s maximum resource needs.
  • Complex and computationally intensive, especially with many resources and processes.

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